/*
 * Copyright (C) 2000-2008 Jens Nixdorf and various contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies of the Software, its documentation and marketing & publicity
 * materials, and acknowledgment shall be given in the documentation, materials
 * and software packages that this Software was used.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.mopore.jat.util;

import java.awt.FontMetrics;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class TextService {
	
	private static final Map<String, String> entries = new HashMap<String, String>();
	
	public static final String CUTTED_TEXT = "..";
	
	public static String readText( String path ) {
		
		final Log log = LogFactory.getLog(TextService.class.getName());
		
		String text = entries.get( path );
		
		if ( text == null ) {
			InputStream inputStream = 
				MetaInformationService.class.getResourceAsStream( path );
			
			BufferedReader reader = 
				new BufferedReader( new InputStreamReader( inputStream ) );
			
			try {
				StringBuilder b = new StringBuilder();
				String line = reader.readLine();
				
				while ( line != null ) {
					b.append( "\n" );
					b.append( line );
					line = reader.readLine();
				}
				
				inputStream.close();
				reader.close();
				
				text = b.toString();
				entries.put( path, text );
			} catch (IOException e) {
				log.error( "Could not read about dialog", e );
			}
		}
		
		return text;
	}
	
	public static String bringTextToWidth( FontMetrics metrics, String text, 
			int maxWidth ){
		int cuttedWidth = metrics.stringWidth( CUTTED_TEXT );
		if ( maxWidth < cuttedWidth ) {
			return CUTTED_TEXT;
		}
		
		int length = metrics.stringWidth( text );
		
		if ( length > maxWidth ){
			
			boolean tooLong = true;
			while ( tooLong ){
				text = text.substring( 0, text.length() -2 );
				
				length = metrics.stringWidth( text ) + cuttedWidth;
				tooLong = length > maxWidth;
			}
			text = text + CUTTED_TEXT;
		}
		
		return text;
	}

}
